<!-- 成员数据选择模块 -->

<template>
  <el-popover
    trigger="click"
    placement="bottom"
    width="300"
    v-model="visible"
    :placement="'top-start'"
    :visible-arrow="false"
  >
    <el-input
      readonly
      placeholder="人数未定"
      :value="totalCountLabel"
      slot="reference"
      @click="visible = !visible"
    >
      <i slot="suffix" class="el-input__icon iconfont iconuser"></i>
    </el-input>

    <el-row type="flex" :gutter="10" align="middle">
      <el-col>每间</el-col>
      <el-col>
        <el-select
          size="mini"
          :value="adultCount + ' 成人'"
          placeholder="请选择"
          @change="handleAudltChange"
        >
          <el-option
            v-for="item in adultMemberList"
            :key="item"
            :value="item"
          />
        </el-select>
      </el-col>
      <el-col>
        <el-select
          size="mini"
          :value="childCount + ' 儿童'"
          placeholder="请选择"
          @change="handleChildChange"
        >
          <el-option
            v-for="item in childMemberList"
            :key="item"
            :value="item"
          />
        </el-select>
      </el-col>
    </el-row>

    <el-row type="flex" justify="end" class="btn-col">
      <el-button size="mini" @click="onClick" type="primary">确定</el-button>
    </el-row>
  </el-popover>
</template>

<script>
  export default {
    props: ['adultMemberList', 'childMemberList', 'onChange'],
    data() {
      return {
        visible: false,
        totalCountLabel: null,
        totalCount: [],
        adultCount: 2,
        childCount: 0,
      }
    },

    methods: {
      onClick: function () {
        this.totalCount = [this.adultCount, this.childCount]

        const suffix = ['成人', '儿童']
        this.totalCountLabel = this.totalCount
          .filter(n => n > 0)
          .map((n, i) => `${n}${suffix[i]}`)
          .join(' ')

        this.visible = false

        // 回调函数
        this.onChange(this.totalCount)
      },

      handleAudltChange: function(v) {
        this.adultCount = v
      },

      handleChildChange: function(v) {
        this.childCount = v
      },
    }
  }
</script>

<style scoped lang="less">
  .btn-col {
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid #ddd;
  }
</style>

